condition	mean	min	max
4 h after light	21.84855	20.7316	22.9655
8 h after light	13.904250000000001	12.8484	14.9601
12 h after light	16.9587	15.6827	18.2347
4 h after dark	27.480166666666666	26.2443	29.2869
8 h after dark	31.656	31.0538	32.1233
12 h after dark	27.663933333333333	27.3519	28.1898